ADVANCED LINEAR ALD2331A/ALD2331B/ALD2331 DEVICES, INC. DUAL PRECISION CMOS VOLTAGE COMPARATOR WITH OPEN DRAIN OUTPUT DRIVER GENERAL DESCRIPTION APPLICATIONS The ALD2331A/ALD2331B/ALD2331 is a monolithic high performance Simple precision reference voltage setting dual precision voltage comparator built with advanced silicon gate EPAD High source impedance voltage CMOS technology intended for high precision analog applications. The comparison circuits ALD2331A/ALD2331B/ALD2331 offers ultra-low input offset voltages MOSFET driver and currents at its input pre-amplifier, precision voltage comparator and Dual limit window comparator high-current output driver integrated on-chip, in one industry standard Power supply voltage monitor pinout 8 Lead PDIP or SOIC package. Primary features include: very high Photo-detector sensor circuit 12 typical input impedance of 10 low input bias current of 10pA fast Relay or LED driver response time of 750ns with only 10mV input step signal very low power Oscillators dissipation of 55A per comparator and single (+5V) or dual (5V) power Battery operated instruments supply operation and 50mA open drain output drivers. Remote signal detection The input voltage range includes ground, making this comparator ideal for BENEFITS low level signal detection with high source impedance. The outputs are Simple precision reference voltage setting open-drain configurations, allowing maximum application flexibility, such as On-chip input pre-amplifier and output wired-OR connection and various different output loads. An external pull- buffers up resistor is required for each output, although the value of the pull-up Precision voltage comparison without resistor can vary over a wide range in order to suit the application needs. pre-amplifier +. The outputs can be connected to a higher external voltage than V Eliminates need for second power supply Wide range of pull-up resistor values The ALD2331A/ALD2331B/ALD2331 is ideal for a great variety of precison analog voltage comparator applications, especially low level signal detec- tion circuits requiring low standby power, yet retaining high output current capability as needed. PIN CONFIGURATION FEATURES Fanout of 30LS TTL loads + OUT 1 8 V 1 Guaranteed to drive 200 loads Low supply current of 55A typical -IN 2 7 OUT 1 2 Pinout of LM193 industry standard voltage comparators Extremely low input bias currents -- typically 10pA +IN 3 6 -IN 1 2 Virtually eliminates source impedance effects Low operating supply voltage of 3V to 10V GND 4 5 +IN 2 Single (+5V) and dual supply (5V) operation High speed for both large and small level signals SAL, PAL PACKAGES -- 300ns typical for TTL inputs CMOS, NMOS and TTL compatible Wired-OR open drain outputs High output sink current -- typically 50mA BLOCK DIAGRAM Low supply current spike + (8) V ORDERING INFORMATION (L suffix for lead free version) INVERTING INPUT -IN (2) 1 Operating Temperature Range * (1) OUT 1 NONINVERTING INPUT 0C to +70C 0C to +70C +IN (3) 1 + V 8-Pin Small 8-PinPlastic INVERTING INPUT Outline Package (SOIC) Dip Package -IN (6) 2 (7) OUT 2 NONINVERTING INPUT +IN (5) ALD2331ASAL ALD2331APAL 2 (4) GND ALD2331BSAL ALD2331BPAL ALD2331SAL ALD2331PAL * Contact factory for leaded (non-RoHS) or high temperature versions. Rev 2.0 2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286 www.aldinc.comABSOLUTE MAXIMUM RATINGS + Supply voltage, V +10.6V + Differential input voltage range -0.3V to V +0.3V Power dissipation 600 mW Operating temperature range SAL, PAL packages 0C to +70C Storage temperature range -65C to +150C Lead temperature, 10 seconds +260C OPERATING ELECTRICAL CHARACTERISTICS + T = 25C V = +5V unless otherwise specified A 2331A 2331B 2331 Parameter Symbol Min Typ Max Min Typ Max Min Typ Max Unit Test Conditions Supply V V Dual Supply S 1.5 5 1.5 5 1.5 5 + Voltage V 3 10 3 10 3 10 V Single Supply Supply I 110 180 110 180 110 180 A No Load S Current Two Comparators Voltage Gain A 50 150 50 150 50 150 V/mV R 15K VD LOAD Input Offset Voltage V 0.2 0.5 0.5 1.0 1.0 2.0 mV R 1.5K OS LOAD 1 Input Offset Current I 0.01 20 0.01 20 0.01 20 pA OS 1 Input Bias Current I 0.01 20 0.01 20 0.01 20 pA B +-1.5 +-1.5 +-1.5 Common Mode Input V -0.3 V -0.3 V -0.3 V V ICR 2 Voltage Range Low Level Sink V 0.15 0.4 0.15 0.4 0.15 0.4 V I = 12mA OL SINK Output Voltage V = 1V Differential INPUT Low Level Sink I 24 50 24 50 24 50 mA V = 1.0 V OL OL Output Current SINK OUTPUT ON High Level Sink Output I 0.01 20 0.01 20 0.01 20 nA V = 5.0 V L OUT Leakage Current SINK OUTPUT OFF 2 Response Time t 1.1 1.1 1.1 s R = 5.1K, C = 15pF RP L L 5mV Input Step/ 5mV Overdrive t 2.4 2.4 2.4 s R = 5.1K ,C =15pF RP L L 1mVInput Step/ 1mV Overdrive t 600 600 600 ns R = 5.1K, C = 15pF RP L L 100mV Input Step/ 5mV Overdrive t 300 300 300 ns R = 5.1K ,C =15pF RP L L TTL level Input Step Common Mode CMRR 80 80 80 dB V = 0V to 2.5V INPUT Rejection Ratio Power Supply PSRR 75 75 75 dB + V = 4V to 5V Rejection Ratio 1 Notes: Consists of junction leakage currents 2 Sample test parameter ALD2331A/ALD2331B/ALD2331 Advanced Linear Devices 2 of 8